Loom



Oct. 13, 1925. 1,557,315

l C. J. NAUEN LOOM Filed Sept. 17. 1923 3 Sheets-Shut 2 il l PatentedOct. 13, 1925.

CHARLES J. NAUENQomwzsrsoivIERvILLE, lvmssAem;smilie;Y

To Ua/@omit 'may oon-oem.

ation'.` TheI parts-'mot shown thereinL are;

Stendal-fol' parte and lflitlilws sueha'siai'efemfployed" inf ordinarylooms aiicl it' vWill be noted that wjylila` my loom" is a. type uitenovel an'dd'ist'nct; itl-oonformslto Stirn" ard priioiplesff n'clpermite the utililztiohf of parte stciidarclized toloommanfaotile-'ai'il Whollyfamiliar` to the usual vloom op'etiifes.Utilizing# the illustratedii `s'tiricture I as a characteristicembodiment: by'whoh* tl'mdo,L ture? of' my inventioiifmayloeuntlerstood, I will nolw proceed to e more detailed disoriesioh oftheV principles` involved tlierei'n,` it biiigjunderstood "that fsuoh'embodiment and disoussio'is"illil'stative rather thah specific except"Wliele" Speoic' fatee *of invetttiloii ae'set. forth asjelem'eiitsofnovel'ty. Throughout tho -speciootiorr and drowngjs uw olraaoolutolriShift i the pawl leverA` 23 is rocked on its pivot by the link 21, andthrough the engagement of the feed pawls 26 with the ratchet v25, saidratchet is turned through a part of a revo-z lution and by means of thegear train 28, 29, rotates the drive shaft 6 for the cloth beams 3.Asthe diameterof the cloth lbeam increases, the roll- 18 is liftedibythe successive layers of cloth wound on the beam and by reason of itsconnection at 2O with the link 21 raises said link in the slot 22 of thepawl carrying lever 23, thus changing the leverage, and therebyautomatically reducing the number of picks.

, Inasmuch as the loom of the present invention is designed to weave twoindependent lengths of fabric, it is necessary to employ two shuttleswith appropriate picker mechanism for operating the same, together withsuitable heddle and reed mechanism operating in properly timed relationto the flight of the shuttles. I have accordingly indicated at 34 abatten which extends transversely of the loom approximately midway oftheheight of the side frames 1 and which carries the shuttle boxes andthe reed mechanism. -The `batten 34 is automatically raised and loweredto open and close the shed by means of cranks 35 (Fig. 1) on the crankshaft 31 and connecting rods 35y to the batten, being guided in itsvertical travel by'guide rods 36 carried by the side frames 1. The shedis openwhen the cranks are lowered (Fig. 1) and is closed when thecranks are raised.

The batten 34 has at either side thereof and s aced therefrom sidestrips 37 (Fig. 5) which define with the batten independent parallelguideways 38 for the shuttles S. Beyond the side frames 1 the batten 38has bolted thereto at 39 on either side thereof a pair of blocks 40(Fig. 6) constituting the bottom surfaces of the shuttle boxes. The sidewalls of the shuttle boxes are indicated at 41 and the blocks 40 arevertically slotted asindicated at 42 to admit the picker sticks 43 whichare fulcrumed upon the side frames 1 at 44 and are actuated in the usualmanner.

Mounted uponV the batten 34 is an overlying strip 45 which with otherstrips 46 overlying the guide walls 37 and' spaced therefrom asindicated at 47, Fig. 5,. constitute a mount for the reeds R pastwhich-the shuttles therefore,

batten 34 as actuated from the crank shaft 31 whereby to open and closethe shed at the proper moment during the flight of the shuttles. Y f iThe warp I/V is opened and closed in properly timed relation to themovement of the batten by heddles H arranged beneath the batten andmoved laterally relative thereto by theusual dobby. Inasmuch as thisdobby forms no part of my present yinvention, it is not illustrated,althoughV the heddles are shown in Figs. 3 and 5.

In order to maintain a dragging tension upon the warp beams, each beamroll is provided with a gear 52 meshing with a pinion 53 on a stub shaft54, the ratio between the gears 52 and 53 being preferably a one to tworatio, and the stub shaft 54 carrying a pulley 55 over which issuspended a counterweight `56, the freeend of the `cord which carriessaid counterweight being 'wrapped a few times Aaround the pulley tosecure it thereon.

It will thus be seen that with myloom two lengths of fabric aresimultaneously woven in vertical flights, and that this methodl ofweaving not only doubles the production of the loom without materialincrease in either floor space or power required, but permits convenientinspection of the fabrics for imperfections while they are being woven.'

Various modifications in the construction and operationof my device mayobviously be resorted to without departing from the spirit of myinvention, if within the limits of the appended claims. NVhat Itherefore claim and desire to secure by Letters Patent is: Y 1. In aloom, a crank shaft having an eccentric thereon, a pair of cloth beams,ya

pawl carrying lever operated from said eccentric and having a pawl, aratchet driven by said pawl, a common drive shaft for the cloth beams fand operatively connected to said ratchet, and a regulating. device incontact with the fabric being wound upon one of said cloth beams andoperatively connected with the connections between said eccentric andsaid pawl carrying lever, i

said pawl carrying lever, whereby to change the effective leverage ofsaid lever as the diameter of said cloth beam increases.

3. In a loom, a crank shaft having an eccentric thereon, a pair of clothbeams, a pawl carrying lever operated from said eccentric and having apawl, a ratchet driven by sai-d pawl, a common drive shaft for the clothbeams and operatively connected to said ratchet, worm shafts operatedfrom said drive shaft, a clutch mechanism .for selectively connectingsaid worm Shafts, a

speed reduc-tion gear train between said worm shafts and said clothbeams, and a regulating roller in contact with the fabric being Woundupon one of said cloth beams and operatively connected with theconnections Abetween said eccentric and said pawl carrying lever wherebyto change the effective leverage of said lever as the diameter i of saidcloth beam increases.

In testimony whereof I aiix my signature.

CHARLES J. N AUEN.

